As posted in September the TX2_2 transformer (T7) of my Lime was damaged. I don‘t know how it happened (loose connection), but the quick test didn‘t work.
The picture on the left side above shows the quick test with damaged transformer, on the right side above you see the broken transformer. After being replaced the quick test worked fine, picture on the left side below. On the right side below you see the replaced and soldered transformer on the Lime
Many thanx to Tim, who is running a soldering service in Cologne and did a real good job.